Dishonored

After being paid off by The Loyalist Conspiracy with coin and elixir, Thorpe slipped Corvo Attano a key and a note for him hidden underneath a loaf of bread, allowing Corvo to escape from his cell. He also leaves a sword nearby for Corvo to use, before leaving the areas through which Corvo must pass to escape Coldridge.

The Brigmore Witches

In between Dishonored and The Brigmore Witches, Thorpe's treachery is discovered and he is scheduled to be executed along with Corporal Hamrick and Private Morris. Daud can prevent Thorpe from being executed, giving him a chance to talk with the condemned Officer for useful information, as well as earning a special action.